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  • 1
    Electronic Resource
    Electronic Resource
    Physical parameters for the Saturn atmosphere computed by using voyager data
    Amsterdam : Elsevier
    Advances in Space Research 7 (1987), S. 33-37 
    Details
    ISSN: 0273-1177
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0273-1177(87)90200-6
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  • 2
    Electronic Resource
    Electronic Resource
    Physical parameters for the atmosphere of Uranus
    Amsterdam : Elsevier
    Advances in Space Research 10 (1990), S. 109-112 
    Details
    ISSN: 0273-1177
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0273-1177(90)90093-F
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  • 3
    Electronic Resource
    Electronic Resource
    Longitudinal asymmetries of the coronal line intensities
    Amsterdam : Elsevier
    Advances in Space Research 11 (1991), S. 169-172 
    Details
    ISSN: 0273-1177
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0273-1177(91)90108-V
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  • 4
    Electronic Resource
    Electronic Resource
    Short time periodicities of the atmospheric activity of Jupiter (1990)
    Springer
    Earth, moon and planets 49 (1990), S. 211-219 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Short time periodicities of 3, 6, and 12 months have been found by analysis of the coefficient of atmospheric activity of Jupiter for the time period 1963–1967. These periodicities have been attributed to seasonal variations of the Jovian atmosphere, and could be related to similar periodicities observed in solar flares and in the high velocity solar wind streamers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00055175
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  • 5
    Electronic Resource
    Electronic Resource
    Seasonal variation in the atmospheric activity of Jupiter (1991)
    Springer
    Earth, moon and planets 52 (1991), S. 145-159 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Periodicities of 22, 8 and 6 years have been found by a statistical analysis of the coefficient of atmospheric activity R of Jupiter for the time period 1910–1985. We have also found variations of the coefficient of asymmetry of the activity Z measured by the Observatory of Athens for the time period 1956–1985 with periodicities of 12, 8, 6 and 4 years by statistical analysis. The same periodicities have been recently found in an analysis of the total number of solar flares and in the number of high velocity solar wind streamers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00054180
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  • 6
    Electronic Resource
    Electronic Resource
    Solar-planetary cycles in Jupiter's great red spot darkness (1996)
    Springer
    Earth, moon and planets 73 (1996), S. 167-179 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The change in the darkness of the Great Red Spot (GRS) of Jupiter (1894–1974) has been analysed with Fourier (FFT), Maximum Entropy and Power spectrum (Blackman-Tukey window) (PSA) methods of spectrum analysis. Significance, non-randomness and stationarity tests assigned high variance to periodicities of 33 ± 4, 13–15, about 11, 9 and 3 yrs. The highest correlation between solar activity and GRS darkness was found for the 14th and 16th solar cycle. The periodicities obtained are interpreted as the combined eftects of solar activity, planetary resonances and internal jovian mechanisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114149
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  • 7
    Electronic Resource
    Electronic Resource
    Physical parameters of the atmosphere of Venus from Venera 15 and 16 missions (1993)
    Springer
    Earth, moon and planets 63 (1993), S. 1-7 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The following physical parameters have been computed for the atmosphere of Venus between 65 and 90 km, by intervals of 1 km. (1) Pressure, (2) Density, (3) Speed of sound, (4) Number density, (5) Density scale, (6) Pressure scale, (7) Collisional frequency, (8) Mean particle velocity (9) Mean free path, (10) Columnar mass, (11) Viscosity. For these calculations we have used the temperature altitude measurements of Venera 15 and 16 at 52 °N and 72 °N latitudes, the night and 70 °N and 72 °N latitudes the day.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00572133
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  • 8
    Electronic Resource
    Electronic Resource
    Cosmic-ray intensity related to solar and terrestrial activity indices in solar cycle No. 20 (1981)
    Springer
    Astrophysics and space science 74 (1981), S. 303-317 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The 11-year modulation of cosmic-ray intensity is studied using the data from nine world-wide neutron monitoring station over the period 1965–1975. From this analysis the following relation among the modulated cosmic-ray intensityI, the relative sunspot numberR, the number of proton eventsN p and the geomagnetic indexA p has been derived which describes the long-term modulation of cosmic rays $$I = C - 10^{ - 3} (KR + 4N_P + 12A_P ),$$ whereC is a constant which depends on the rigidity of each station, andK is a coefficient related to the diffusion coefficient of cosmic rays and its transition in space. The standard deviation between the observed and calculated values of cosmic-ray intensity is about 5–9%. This relation has been explained by a generalization of the Simpson solar wind model which has been proved by the spherically symmetric diffusion-convection theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00656441
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  • 9
    Electronic Resource
    Electronic Resource
    The evolution and the secondary maximum of the green line intensity (1982)
    Springer
    Solar physics 76 (1982), S. 181-190 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new relation has been given in order to calculate the intensity of the green line of the solar corona at 5303 Å as a function of the number of proton events N P and the R α(R) index of solar activity. This relation is available for the 19th and 20th solar cycles. Moreover there is given a theoretical justification of this relationship taking into account as a new parameter the evolution of the coronal magnetic field during the solar cycle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00214139
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  • 10
    Electronic Resource
    Electronic Resource
    Asymmetric variations of the coronal green line intensity (1988)
    Springer
    Solar physics 115 (1988), S. 367-384 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The analysis of the daily measurements of the coronal green line intensity, which have been extensively tested for homogeneity and freedom of trends observed at the Pic-du-Midi observatory during the period 1944–1974, has revealed some characteristic asymmetric variations. A north-south asymmetry of the green line intensity is the main feature of the period 1949–1971 while a south-north one is obvious within 1972–1974 and the minor statistical significance span 1944–1948. On the other hand a significant W-E asymmetry has been confirmed in the whole period 1944–1974. It is noteworthy that the period 1949–1971, where the N-S asymmetry takes place consists a 22-yr solar cycle which starts from the epoch of the solar magnetic field inversion of the solar cycle No. 18 and terminates in the relevant epoch of the cycle No. 20. The combination of N-S and S-N asymmetry with a W-E one makes the NW solar-quarter to appear as the most active of all in the 22-yr cycle 1949–1971, while in the periods 1944–1948 and 1972–1974 the SW quarter is the most active. Finally, from the polar distribution of the green line intensity has been derived that the maximum values of the asymmetries occur in heliocentric sectors ± 10°–20° far from the solar equator on both sides of the central meridian. Physical mechanisms which could contribute to the creation of both N-S and E-W asymmetries of the solar activity and the green line intensity as an accompanied event, like different starting time of an 11-yr solar cycle in the two solar hemispheres, the motion of the Sun towards the Apex, and short-lived ‘active’ solar longitudes formed by temporal clustering of solar active centers, have been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00148734
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